How did Halo Oglasi get +171% conversions while cutting cost per conversion by 47%?

https://laylassuperbop-ed.rivetgarden.com/posts/how-did-halo-oglasi-get-171-conversions-while-cutting-cost-per-conv-by-47

In the digital landscape of 2024, seeing a 171 percent increase in conversions alongside a 47 percent cost per conversion reduction feels like a mathematical impossibility